Novel embedded LSR laser spot removing module
By independently controlling the movement of the first and second optical diffusers, the problem of inaccurate movement control of optical diffusers in the prior art is solved, and independent movement and accurate control of optical diffusers are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市维斗科技股份有限公司
- Filing Date
- 2025-07-21
- Publication Date
- 2026-05-26
AI Technical Summary
In existing dynamic light diffusion devices, the motion control of the optical diffuser is inaccurate, resulting in motion interference problems.
The design employs independent first and second spring contacts, with the movement of the first and second optical diffusers controlled by independent drive coils, each controlled by a single current variable, thus avoiding mutual interference between the spring contacts.
Independent motion control of the optical diffuser was achieved, ensuring the accuracy and independence of the motion and avoiding motion interference.
Smart Images
Figure CN224287260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical device technology, and in particular to a novel embedded LSR laser spot removal module. Background Technology
[0002] Chinese utility model patent with patent number ZL202321175970.6 and patent title: A Dynamic Light Diffusion Device and Projector, substantially discloses a speckle-removing module; the aforementioned dynamic light diffusion device specifically discloses the following technical solution: A dynamic light diffusion device includes a base and an optical diffuser, a spring assembly, and a driving assembly mounted on the base; the spring assembly is used to mount the optical diffuser; the spring assembly includes a first spring and a second spring stacked together, the first spring being fixed to the base by two first elastic arms, and the two second elastic arms of the second spring being fixedly connected to the first spring by laser welding or adhesive dispensing; the first spring and the second spring respectively drive the optical diffuser to reciprocate in the X or Y direction under the drive of the driving assembly; the driving assembly includes a first driving magnet and a second driving magnet respectively connected to the first spring and the second spring, and a first driving coil and a second driving coil disposed on the base; the first driving magnet and the second driving magnet are respectively disposed above the first driving coil and the second driving coil.
[0003] It should be noted that the above-mentioned dynamic light diffusion device still has the following defects: Since the first and second springs are tightly connected to form an integral structure, when the first spring drives the optical diffuser to move along the X or Y direction, the second spring will also move synchronously. At this time, the second elastic arm of the second spring will elastically deform and produce motion interference; similarly, when the second spring drives the optical diffuser to move along the X or Y direction, the first spring will also move synchronously. At this time, the first elastic arm of the first spring will elastically deform and produce motion interference; therefore, the dynamic light diffusion device has the problem of inaccurate control of the optical diffuser's motion. Utility Model Content
[0004] The purpose of this invention is to provide a novel embedded LSR laser spot removal module that addresses the shortcomings of existing technologies. This novel embedded LSR laser spot removal module features a novel structural design and accurate motion control.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution.
[0006] A novel embedded LSR laser speckle removal module includes a main base, a first spring, a second spring, a magnet group, and a coil group. The main base has a vertical through hole in the middle. The first spring has two first elastic arms arranged in a centrally symmetrical manner, and the second spring has two second elastic arms arranged in a centrally symmetrical manner. The extension direction of the first elastic arms is perpendicular to the extension direction of the second elastic arms.
[0007] The magnet assembly includes two first driving magnets that are arranged opposite each other and spaced apart along the extension direction of the first elastic arm and respectively fastened to the first spring piece, and two second driving magnets that are arranged opposite each other and spaced apart along the extension direction of the second elastic arm and respectively fastened to the second spring piece;
[0008] The coil group includes two first drive coils and two second drive coils. Each first drive coil corresponds to a first drive magnet, and each second drive coil corresponds to a second drive magnet.
[0009] The first spring is located on the upper side of the main body base, and the end parts of each first elastic arm of the first spring are screwed onto the upper surface of the main body base by locking screws; the second spring is located on the lower side of the main body base, and the end parts of each second elastic arm of the second spring are screwed onto the lower surface of the main body base by locking screws.
[0010] The first spring is equipped with a first optical diffuser located on the upper side of the through hole in the base, and the second spring is equipped with a second optical diffuser located on the lower side of the through hole in the base.
[0011] The first driving magnet and the second driving magnet are arranged vertically, and the first driving magnet and the second driving magnet extend into the through hole of the base. The four driving magnets in the magnet group are arranged in a ring array.
[0012] Each of the first drive coils and each of the second drive coils are arranged vertically, and each of the first drive coils and each of the second drive coils are located in the through hole of the base. The four drive coils in the coil group are arranged in a ring array.
[0013] The main body base has an inwardly protruding coil mounting protrusion on the inner wall of the base through hole corresponding to each drive coil, and the coil mounting protrusion and the main body base are an integral structure.
[0014] Each of the first drive coils and each of the second drive coils are respectively assembled and glued to the corresponding coil mounting protrusions.
[0015] The lower surface of the main base is equipped with an FPC circuit board, and each of the first drive coils and each of the second drive coils are electrically connected to the FPC circuit board.
[0016] The first spring and the second spring are both made of stainless steel, the first elastic arm and the first spring are integrally formed, and the second elastic arm and the second spring are integrally formed.
[0017] Compared with existing technologies, this invention has the following advantages: Specifically, this invention achieves speckle removal through an optical diffuser combination consisting of a first optical diffuser and a second optical diffuser. The first and second optical diffusers move independently. The movement of the first optical diffuser is controlled by a single variable—the current of the first driving coil—and the movement of the second optical diffuser is controlled by a single variable—the current of the second driving coil. Since the first and second springs are arranged at intervals and are independent of each other, they do not interfere with each other during movement. Compared with existing technologies, this novel embedded LSR laser speckle removal module can accurately control the movement of the first and second optical diffusers. Therefore, this novel embedded LSR laser speckle removal module has the advantages of novel structural design and accurate motion control. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is an exploded view of the present invention.
[0021] Figure 3 This is a cross-sectional schematic diagram of the present invention.
[0022] Figure 4 This is a cross-sectional view of another location of the present invention.
[0023] exist Figures 1 to 4 This includes:
[0024] 1-Main base; 11-Base through hole; 12-Coil mounting protrusion; 2-First spring; 21-First elastic arm; 3-Second spring; 31-Second elastic arm; 41-First driving magnet; 42-Second driving magnet; 51-First driving coil; 52-Second driving coil; 61-First optical diffuser; 62-Second optical diffuser; 7-FPC circuit board. Detailed Implementation
[0025] The present invention will now be described in conjunction with specific embodiments.
[0026] Example 1, as Figures 1 to 4As shown, a novel embedded LSR laser speckle removal module includes a main base 1, a first spring 2, a second spring 3, a magnet group, and a coil group. The main base 1 has a vertical through hole 11 in the middle. The first spring 2 is provided with two first elastic arms 21 arranged in a centrally symmetrical manner, and the second spring 3 is provided with two second elastic arms 31 arranged in a centrally symmetrical manner. The extension direction of the first elastic arm 21 is perpendicular to the extension direction of the second elastic arm 31.
[0027] It should be explained that the first spring 2 and the second spring 3 are both made of stainless steel, the first elastic arm 21 and the first spring 2 are integrally formed, and the second elastic arm 31 and the second spring 3 are integrally formed.
[0028] Among them, such as Figures 1 to 4 As shown, the magnet assembly includes two first driving magnets 41 arranged opposite each other along the extension direction of the first elastic arm 21 and respectively fastened to the first spring plate 2, and two second driving magnets 42 arranged opposite each other along the extension direction of the second elastic arm 31 and respectively fastened to the second spring plate 3.
[0029] Furthermore, such as Figures 1 to 4 As shown, the coil group includes two first driving coils 51 and two second driving coils 52. Each first driving coil 51 corresponds to a first driving magnet 41, and each second driving coil 52 corresponds to a second driving magnet 42.
[0030] Furthermore, such as Figures 1 to 4 As shown, the first spring 2 is located on the upper side of the main body base 1, and the end parts of each first elastic arm 21 of the first spring 2 are respectively screwed onto the upper surface of the main body base 1 by locking screws; the second spring 3 is located on the lower side of the main body base 1, and the end parts of each second elastic arm 31 of the second spring 3 are respectively screwed onto the lower surface of the main body base 1 by locking screws.
[0031] In addition, the first spring 2 is equipped with a first optical diffuser 61 located on the upper side of the base through hole 11, and the second spring 3 is equipped with a second optical diffuser 62 located on the lower side of the base through hole 11.
[0032] It should be noted that, as Figure 1As shown, two first driving magnets 41 are arranged facing each other and spaced apart along the X-axis. Correspondingly, two first driving coils 51 are arranged facing each other and spaced apart along the X-axis. The two first driving coils 51 cooperate with the two first driving magnets 41 to drive the first spring 2 to reciprocate along the X-axis. The first spring 2, reciprocating along the X-axis, drives the first optical diffuser 61 to reciprocate synchronously. Similarly, two second driving magnets 42 are arranged facing each other and spaced apart along the Y-axis. Correspondingly, two second driving coils 52 are arranged facing each other and spaced apart along the Y-axis. The two second driving coils 52 cooperate with the two second driving magnets 42 to drive the second spring 3 to reciprocate along the Y-axis. The second spring 3, reciprocating along the Y-axis, drives the second optical diffuser 62 to reciprocate synchronously.
[0033] It should be emphasized that in this embodiment, speckle removal is achieved through an optical diffuser combination consisting of a first optical diffuser 61 and a second optical diffuser 62. The first optical diffuser 61 and the second optical diffuser 62 move independently. The movement of the first optical diffuser 61 is controlled by a single variable, the current of the first driving coil 51, and the movement of the second optical diffuser 62 is controlled by a single variable, the current of the second driving coil 52. Since the first spring 2 and the second spring 3 are arranged at intervals and are independent of each other, that is, the first spring 2 and the second spring 3 will not interfere with each other during movement; therefore, the novel embedded LSR laser speckle removal module in this embodiment can accurately control the movement of the first optical diffuser 61 and the second optical diffuser 62.
[0034] In summary, the novel embedded LSR laser speckle removal module of this embodiment has the advantages of novel structural design and accurate motion control through the above structural design.
[0035] Example 2, as Figure 1 and Figure 2 As shown, the difference between this embodiment 2 and embodiment 1 is that: each first driving magnet 41 and each second driving magnet 42 are arranged vertically, and each first driving magnet 41 and each second driving magnet 42 extend into the base through hole 11, and the four driving magnets in the magnet group are distributed in a ring array.
[0036] In addition, each of the first drive coils 51 and each of the second drive coils 52 are arranged vertically, and each of the first drive coils 51 and each of the second drive coils 52 are located in the base through hole 11. The four drive coils in the coil group are distributed in a ring array.
[0037] It should be noted that in this second embodiment, each drive coil and each drive magnet are arranged vertically, as shown below. Figures 1 to 4As shown, each driving magnet is located inside the corresponding driving coil, and each driving magnet is arranged laterally aligned with the corresponding driving coil. The above layout has the advantage of good structural compactness.
[0038] Example 3, as Figures 1 to 4 As shown, the difference between this embodiment 3 and embodiment 2 is that: the main body base 1 has an inwardly protruding coil mounting protrusion 12 on the inner wall of the base through hole 11 corresponding to each drive coil, and the coil mounting protrusion 12 and the main body base 1 are an integral structure.
[0039] Each of the first drive coils 51 and each of the second drive coils 52 are respectively fitted and glued to the corresponding coil mounting protrusions 12.
[0040] The coil mounting protrusion 12 in this embodiment can enable the rapid installation and fixation of the drive coil.
[0041] Example 4, as Figures 2 to 4 As shown, the difference between this embodiment four and embodiment one is that: the lower surface of the main body base 1 is equipped with an FPC circuit board 7, and each first drive coil 51 and each second drive coil 52 are electrically connected to the FPC circuit board 7.
[0042] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A novel embedded LSR laser spot removal module, comprising a main body base (1), a first spring (2), a second spring (3), a magnet group, and a coil group. The main body base (1) has a vertical through hole (11) in the middle. The first spring (2) is provided with two first elastic arms (21) arranged in a centrally symmetrical manner. The second spring (3) is provided with two second elastic arms (31) arranged in a centrally symmetrical manner. The extension direction of the first elastic arm (21) is perpendicular to the extension direction of the second elastic arm (31). The magnet assembly includes two first driving magnets (41) arranged opposite each other along the extension direction of the first elastic arm (21) and fastened to the first spring piece (2), and two second driving magnets (42) arranged opposite each other along the extension direction of the second elastic arm (31) and fastened to the second spring piece (3). The coil group includes two first drive coils (51) and two second drive coils (52). Each first drive coil (51) corresponds to a first drive magnet (41), and each second drive coil (52) corresponds to a second drive magnet (42). characterized in that The first spring (2) is located on the upper side of the main body base (1), and the end parts of each first elastic arm (21) of the first spring (2) are respectively screwed onto the upper surface of the main body base (1) by locking screws; the second spring (3) is located on the lower side of the main body base (1), and the end parts of each second elastic arm (31) of the second spring (3) are respectively screwed onto the lower surface of the main body base (1) by locking screws; The first spring (2) is equipped with a first optical diffuser (61) located on the upper side of the base through hole (11), and the second spring (3) is equipped with a second optical diffuser (62) located on the lower side of the base through hole (11).
2. A novel inline LSR laser speckle elimination module according to claim 1, characterized in that: Each of the first driving magnets (41) and each of the second driving magnets (42) are arranged vertically, and each of the first driving magnets (41) and each of the second driving magnets (42) extends into the through hole (11) of the base. The four driving magnets in the magnet group are arranged in a ring array. Each of the first drive coils (51) and each of the second drive coils (52) are arranged vertically, and each of the first drive coils (51) and each of the second drive coils (52) are located in the base through hole (11). The four drive coils in the coil group are arranged in a ring array.
3. The novel embedded LSR laser speckle removal module according to claim 2, characterized in that: The main body base (1) has an inwardly protruding coil mounting protrusion (12) on the inner wall of the base through hole (11) corresponding to each drive coil. The coil mounting protrusion (12) and the main body base (1) are an integral structure. Each of the first drive coils (51) and each of the second drive coils (52) are respectively fitted and glued to the corresponding coil mounting protrusions (12).
4. The novel embedded LSR laser speckle removal module according to claim 1, characterized in that: The lower surface of the main body base (1) is equipped with an FPC circuit board (7), and each of the first drive coils (51) and each of the second drive coils (52) are electrically connected to the FPC circuit board (7).
5. A novel embedded LSR laser speckle removal module according to claim 1, characterized in that: The first spring (2) and the second spring (3) are stainless steel parts. The first elastic arm (21) and the first spring (2) are an integral structure, and the second elastic arm (31) and the second spring (3) are an integral structure.